Home / 675,370.40-1,013,055.60-394,743.20

Finding the Fourth Proportional to 675,370.40, 1,013,055.60 and 394,743.20

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Solution

The fourth proportional to 675,370.40, 1,013,055.60 and 394,743.20 is: 592,114.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,370.40 : 1,013,055.60 = 394,743.20 : x
  2. Step 2: Convert to fraction form
    675,370.40/1,013,055.60 = 394,743.20/x
  3. Step 3: Cross multiply
    675,370.40x = 1,013,055.60 × 394,743.20
  4. Step 4: Simplify right side
    675,370.40x = 399,896,809,321.92
  5. Step 5: Solve for x
    x = 399,896,809,321.92/675,370.40
  6. Step 6: Final answer
    x = 592,114.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.